Summary
Updated Aug 31, 2026
Michael Stuart Klein is Chief Executive Officer, President and Chairman of the Board of Directors, Director, 10% Owner of Churchill Capital Corp XIII (XIIIU). 10 SEC Form 4 filings on record going back to 2024, most recently on 5 August 2026. Most recent open-market trade: bought $3.50M of XIIIU on 5 August 2026. Lifetime open-market purchases: $12.00M. Lifetime open-market sales: $6.69M.
Recent Transactions
10Every recent SEC Form 4 transaction Michael Stuart Klein has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Michael Stuart Klein go back to 2024: 10 primary Form 4 filings, an average of 3.3 per year. The typical open-market purchase is $4.00M (3 buys totaling $12.00M). The largest single buy on record is $5.00M of CCXIU in 2025. Sales side: 2 recorded sales totaling $6.69M, so the filing history runs buy-heavy by dollar value. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Michael Stuart Klein files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Jim Frankola - $303K of SKIL open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Michael Stuart Klein?
Michael Stuart Klein is a corporate insider, tracked as Chief Executive Officer, President and Chairman of the Board of Directors, Director, 10% Owner of Churchill Capital Corp XIII (XIIIU). InsiderAlpha holds 10 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Michael Stuart Klein submitted recently?
3 primary Form 4 filings in the last 90 days, covering 2 companies.
Has Michael Stuart Klein been buying or selling stock?
Recorded transactions: 3 open-market purchases ($12.00M) and 2 open-market sales ($6.69M) across all tracked filings.
Where can I see all of Michael Stuart Klein's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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